Outer hard shell of two eggs are removed by placing in dilute HCI. If one is kept in pure water and the other in soldium chloride (NaCI) solution, what will you notice.

Explanation

The outer hard shell consists of calsistes of calcium carbonate. It dissolves in dilute HCI. The soft layer which is left actes as a semipermeable membreane. The egg placed in water will swell in size because water (hypotonic in nature) will enter the semiermeable membrane of the egg due to osmosis. However, in the second case, fluid from the egg (hypotonic) will come out and will pass into and will pass into sodium chloride solution which is at a higher osmotic pressure (hypertonic). Therefore, the egg placed in sodium chloride sodium chloeide solution or saline water will shring in size.